CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.

 

We are leading manufacturer of CDS and HFS pipes and Tubes.

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seamless black steel pipe

Good quality Seamless Boiler Tubes for sales
Good quality Seamless Boiler Tubes for sales
RUIYUAN is a reliable supplier, we trust in them and already cooperated for 5 years. They offer good and stable quality, best service and price.

—— Mr.Wang from SINOPEC

As we've cooperated more than 7 years, RUIYUAN is not only a business partner, but also became a very best friend for us.

—— Mr.Sanjay Bajaj

They will always keep their words, and always put customer's benefit on first consideration, that's why we chose them as a long-term business partner!

—— Mr.Thomas BIttig

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seamless black steel pipe

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China Black Painted Carbon Steel Seamless Pipe factory

Black Painted Carbon Steel Seamless Pipe

JIS G 3462 SEAMLESS STEEL TUBE FOR BOILER AND SUPERHEARTER Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE, ends caps Marking: as per requirement Size:... Read More
2016-06-21 13:14:07
China Cold Drawn Low Tensile Carbon Steel Seamless Tubing ASTM A179 / ASME SA179 factory

Cold Drawn Low Tensile Carbon Steel Seamless Tubing ASTM A179 / ASME SA179

Cold Drawn Low Tensile Carbon Steel Seamless Tubing ASTM A179 / ASME SA179 COLD DRAWN CARBON STEEL SEAMLESS TUBE Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/As per required Ends: BE... Read More
2017-03-14 13:47:38
China Industrial Precision Seamless Steel Tubes , Cold Drawn and Stress Relieved factory

Industrial Precision Seamless Steel Tubes , Cold Drawn and Stress Relieved

Industrial Precision Seamless Steel Tubes with Cold Drawn and Stress Relieved EN10305-1 SEAMLESS STEEL TUBES FOR PRECISION APPLICATIONS Part 1: Seamless cold drawn tubes Specifications: Surface Treatment: ... Read More
2017-03-14 13:47:38
China Hydraulic Mechanical Carbon Steel Seamless Pipe OD 6 - 350mm WT 0.8 - 35mm factory

Hydraulic Mechanical Carbon Steel Seamless Pipe OD 6 - 350mm WT 0.8 - 35mm

Hydraulic Mechanical Carbon Steel Seamless Pipe OD 6 - 350mm WT 0.8 - 35mm Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: as ... Read More
2017-03-14 13:47:38
China ASTM A519 Cold Drawn Carbon And Alloy Steel Seamless Pipes For Mechanical , Auto Parts factory

ASTM A519 Cold Drawn Carbon And Alloy Steel Seamless Pipes For Mechanical , Auto Parts

ASTM A519 Cold Drawn Carbon And Alloy Steel Seamless Pipes For Mechanical , Auto Parts SPECIFICATIONS: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps ... Read More
2017-03-14 13:47:38
China Round EN10255 Carbon Steel Seamless Pipe, Carbon Steel Tubes, Cold Drawn factory

Round EN10255 Carbon Steel Seamless Pipe, Carbon Steel Tubes, Cold Drawn

Round EN10255 Carbon Steel Seamless Pipe, Carbon Steel Tubes Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: as per requirement ... Read More
2017-03-14 13:47:38
China Heavy Wall Precision Seamless Steel Tube ASTM A519 , Seamless Mechanical Tubing factory

Heavy Wall Precision Seamless Steel Tube ASTM A519 , Seamless Mechanical Tubing

Heavy Wall Precision Seamless Steel Tube ASTM A519 , Seamless Mechanical Tubing SPECIFICATIONS: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: ... Read More
2017-03-14 13:47:38
China GB 9948  Cold Drawn Seamless Tube for Petroleum cracking, carbon steel, OD 15 - 90 mm factory

GB 9948 Cold Drawn Seamless Tube for Petroleum cracking, carbon steel, OD 15 - 90 mm

GB 9948 SEAMLESS STEEL TUBES FOR PETROLEUM CRACKING Specifications: Steel Grade: 10/20/12CrMo/15CrMo Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating Ends: BE/PE, ends caps Marking: as ... Read More
2015-12-22 17:28:04
China Cold Drawn Precision Seamless Steel Tube For For Vehicle Auto and Industrial factory

Cold Drawn Precision Seamless Steel Tube For For Vehicle Auto and Industrial

Cold Drawn Precision Seamless Steel Tube For For Vehicle Auto And Industrial Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: as ... Read More
2017-03-14 13:47:38
China Precision Heavy Wall Carbon Steel Seamless Tube DIN1630 , High Performance factory

Precision Heavy Wall Carbon Steel Seamless Tube DIN1630 , High Performance

Precision Heavy Wall Carbon Steel Seamless Tube DIN1630 , High Performance Specifications: Surface Treatment: Bare/Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling or as per required Ends: PE, ... Read More
2017-03-14 13:47:38
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